バイバイマンを数えよう(https://codeiq.jp/q/2593). Python2(51), Python3(52), Go(127), Scala(96).

baibai.go

package main
import "fmt";func main(){a:=[200]uint64{1,1,1,1,2}
for i:=0;i<100;i++{fmt.Println(a[i])
a[i+5]=a[i]+2*a[i+1])}}

baibai.scala

object Main extends App{var a=Seq(1L,1,1,1,2);for(i<-0 to 99){println(a(i));a=a:+a(i)+2*a(i+1)}}

baibai_python2.py

C=[2]+[1]*4;exec'print C[4];C=[C[4]+2*C[3]]+C;'*100

baibai_python3.py

C=[2]+[1]*4;exec('print(C[4]);C=[C[4]+2*C[3]]+C;'*100)